/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Moriyoshi Koizumi <moriyoshi@php.net>                        |
   |         Xinchen Hui       <laruence@php.net>                         |
   +----------------------------------------------------------------------+
*/

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <assert.h>
#include <signal.h>

#ifdef PHP_WIN32
#include <process.h>
#include <io.h>
#include "win32/console.h"
#include "win32/time.h"
#include "win32/signal.h"
#include "win32/php_registry.h"
#include <sys/timeb.h>
#else
#include <php_config.h>
#endif

#ifdef __riscos__
#include <unixlib/local.h>
#endif

#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#include <signal.h>
#include <locale.h>

#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#endif

#ifdef HAVE_PRCTL
#include <sys/prctl.h>
#endif

#ifdef HAVE_PROCCTL
#include <sys/procctl.h>
#endif

#include "SAPI.h"
#include "php.h"
#include "php_ini.h"
#include "php_main.h"
#include "php_globals.h"
#include "php_variables.h"
#include "zend_hash.h"
#include "zend_modules.h"
#include "fopen_wrappers.h"
#include "http_status_codes.h"

#include "zend_compile.h"
#include "zend_execute.h"
#include "zend_highlight.h"
#include "zend_exceptions.h"

#include "php_getopt.h"

#ifndef PHP_WIN32
#define php_select(m, r, w, e, t) select(m, r, w, e, t)
#define SOCK_EINVAL EINVAL
#define SOCK_EAGAIN EAGAIN
#define SOCK_EINTR EINTR
#define SOCK_EADDRINUSE EADDRINUSE
#else
#include "win32/select.h"
#define SOCK_EINVAL WSAEINVAL
#define SOCK_EAGAIN WSAEWOULDBLOCK
#define SOCK_EINTR WSAEINTR
#define SOCK_EADDRINUSE WSAEADDRINUSE
#endif

#include "ext/standard/file.h" /* for php_set_sock_blocking() :-( */
#include "zend_smart_str.h"
#include "ext/standard/html.h"
#include "ext/standard/url.h"  /* for php_raw_url_decode() */
#include "ext/date/php_date.h" /* for php_format_date() */
#include "php_network.h"

#include "php_http_parser.h"
#include "php_cli_server.h"
#include "php_cli_server_arginfo.h"
#include "mime_type_map.h"

#include "php_cli_process_title.h"
#include "php_cli_process_title_arginfo.h"

#define OUTPUT_NOT_CHECKED -1
#define OUTPUT_IS_TTY 1
#define OUTPUT_NOT_TTY 0

#ifdef HAVE_FORK
#include <sys/wait.h>
static pid_t php_cli_server_master;
static pid_t *php_cli_server_workers;
static zend_long php_cli_server_workers_max;
#endif

static zend_string *cli_concat_persistent_zstr_with_char(zend_string *old_str, const char *at, size_t length);

typedef struct php_cli_server_poller {
    fd_set rfds, wfds;
    struct {
        fd_set rfds, wfds;
    } active;
    php_socket_t max_fd;
} php_cli_server_poller;

typedef struct php_cli_server_request {
    enum php_http_method request_method;
    int protocol_version;
    zend_string *request_uri;
    char *vpath;
    size_t vpath_len;
    char *path_translated;
    size_t path_translated_len;
    char *path_info;
    size_t path_info_len;
    char *query_string;
    size_t query_string_len;
    HashTable headers;
    HashTable headers_original_case;
    char *content;
    size_t content_len;
    const char *ext;
    size_t ext_len;
    zend_stat_t sb;
} php_cli_server_request;

typedef struct php_cli_server_chunk {
    struct php_cli_server_chunk *next;
    enum php_cli_server_chunk_type { PHP_CLI_SERVER_CHUNK_HEAP, PHP_CLI_SERVER_CHUNK_IMMORTAL } type;
    union {
        struct {
            void *block;
            char *p;
            size_t len;
        } heap;
        struct {
            const char *p;
            size_t len;
        } immortal;
    } data;
} php_cli_server_chunk;

typedef struct php_cli_server_buffer {
    php_cli_server_chunk *first;
    php_cli_server_chunk *last;
} php_cli_server_buffer;

typedef struct php_cli_server_content_sender {
    php_cli_server_buffer buffer;
} php_cli_server_content_sender;

typedef struct php_cli_server_client {
    struct php_cli_server *server;
    php_socket_t sock;
    struct sockaddr *addr;
    socklen_t addr_len;
    zend_string *addr_str;
    php_http_parser parser;
    bool request_read;
    zend_string *current_header_name;
    zend_string *current_header_value;
    enum { HEADER_NONE = 0, HEADER_FIELD, HEADER_VALUE } last_header_element;
    size_t post_read_offset;
    php_cli_server_request request;
    bool content_sender_initialized;
    php_cli_server_content_sender content_sender;
    int file_fd;
} php_cli_server_client;

typedef struct php_cli_server {
    php_socket_t server_sock;
    php_cli_server_poller poller;
    int is_running;
    char *host;
    int port;
    int address_family;
    char *document_root;
    size_t document_root_len;
    char *router;
    size_t router_len;
    socklen_t socklen;
    HashTable clients;
    HashTable extension_mime_types;
} php_cli_server;

typedef struct php_cli_server_http_response_status_code_pair {
    int code;
    const char *str;
} php_cli_server_http_response_status_code_pair;

static const php_cli_server_http_response_status_code_pair template_map[] = {
    {400, "<h1>%s</h1><p>Your browser sent a request that this server could not understand.</p>"},
    {404, "<h1>%s</h1><p>The requested resource <code class=\"url\">%s</code> was not found on this server.</p>"},
    {405, "<h1>%s</h1><p>Requested method not allowed.</p>"},
    {500, "<h1>%s</h1><p>The server is temporarily unavailable.</p>"},
    {501, "<h1>%s</h1><p>Request method not supported.</p>"}};

#define PHP_CLI_SERVER_LOG_PROCESS 1
#define PHP_CLI_SERVER_LOG_ERROR 2
#define PHP_CLI_SERVER_LOG_MESSAGE 3

static int php_cli_server_log_level = 3;

#if defined(HAVE_UNISTD_H) || defined(PHP_WIN32)
static int php_cli_output_is_tty = OUTPUT_NOT_CHECKED;
#endif

static const char php_cli_server_request_error_unexpected_eof[] = "Unexpected EOF";

static size_t php_cli_server_client_send_through(php_cli_server_client *client, const char *str, size_t str_len);
static php_cli_server_chunk *php_cli_server_chunk_heap_new_self_contained(size_t len);
static void php_cli_server_buffer_append(php_cli_server_buffer *buffer, php_cli_server_chunk *chunk);
static void php_cli_server_logf(int type, const char *format, ...);
static void php_cli_server_log_response(php_cli_server_client *client, int status, const char *message);

ZEND_DECLARE_MODULE_GLOBALS(cli_server)

/* {{{ static char php_cli_server_css[]
 * copied from ext/standard/info.c
 */
static const char php_cli_server_css[] =
    "<style>\n"
    "body { background-color: #fcfcfc; color: #333333; margin: 0; padding:0; }\n"
    "h1 { font-size: 1.5em; font-weight: normal; background-color: #9999cc; min-height:2em; line-height:2em; "
    "border-bottom: 1px inset black; margin: 0; }\n"
    "h1, p { padding-left: 10px; }\n"
    "code.url { background-color: #eeeeee; font-family:monospace; padding:0 2px;}\n"
    "</style>\n";
/* }}} */

#ifdef PHP_WIN32
static bool php_cli_server_get_system_time(char *buf) {
    struct _timeb system_time;
    errno_t err;

    if (buf == NULL) {
        return false;
    }

    _ftime(&system_time);
    err = ctime_s(buf, 52, &(system_time.time));
    if (err) {
        return false;
    }
    return true;
}
#else
static bool php_cli_server_get_system_time(char *buf) {
    struct timeval tv;
    struct tm tm;

    gettimeofday(&tv, NULL);

    if (!php_localtime_r(&tv.tv_sec, &tm)) {
        return false;
    }
    return php_asctime_r(&tm, buf) != NULL;
}
#endif

/* Destructor for php_cli_server_request->headers, this frees header value */
static void cli_header_value_dtor(zval *zv) /* {{{ */
{
    zend_string_release_ex(Z_STR_P(zv), /* persistent */ true);
} /* }}} */

static char *get_last_error(void) /* {{{ */
{
    return pestrdup(strerror(errno), 1);
} /* }}} */

static int status_comp(const void *a, const void *b) /* {{{ */
{
    const http_response_status_code_pair *pa = (const http_response_status_code_pair *) a;
    const http_response_status_code_pair *pb = (const http_response_status_code_pair *) b;

    if (pa->code < pb->code) {
        return -1;
    } else if (pa->code > pb->code) {
        return 1;
    }

    return 0;
} /* }}} */

static const char *get_status_string(int code) /* {{{ */
{
    http_response_status_code_pair needle = {code, NULL}, *result = NULL;

    result = bsearch(&needle, http_status_map, http_status_map_len, sizeof(needle), status_comp);

    if (result) {
        return result->str;
    }

    /* Returning NULL would require complicating append_http_status_line() to
     * not segfault in that case, so let's just return a placeholder, since RFC
     * 2616 requires a reason phrase. This is basically what a lot of other Web
     * servers do in this case anyway. */
    return "Unknown Status Code";
} /* }}} */

static const char *get_template_string(int code) /* {{{ */
{
    size_t e = (sizeof(template_map) / sizeof(php_cli_server_http_response_status_code_pair));
    size_t s = 0;

    while (e != s) {
        size_t c = MIN((e + s + 1) / 2, e - 1);
        int d = template_map[c].code;
        if (d > code) {
            e = c;
        } else if (d < code) {
            s = c;
        } else {
            return template_map[c].str;
        }
    }
    return NULL;
} /* }}} */

static void append_http_status_line(smart_str *buffer,
                                    int protocol_version,
                                    int response_code,
                                    bool persistent) /* {{{ */
{
    if (!response_code) {
        response_code = 200;
    }
    smart_str_appendl_ex(buffer, "HTTP", 4, persistent);
    smart_str_appendc_ex(buffer, '/', persistent);
    smart_str_append_long_ex(buffer, protocol_version / 100, persistent);
    smart_str_appendc_ex(buffer, '.', persistent);
    smart_str_append_long_ex(buffer, protocol_version % 100, persistent);
    smart_str_appendc_ex(buffer, ' ', persistent);
    smart_str_append_long_ex(buffer, response_code, persistent);
    smart_str_appendc_ex(buffer, ' ', persistent);
    smart_str_appends_ex(buffer, get_status_string(response_code), persistent);
    smart_str_appendl_ex(buffer, "\r\n", 2, persistent);
} /* }}} */

static void append_essential_headers(smart_str *buffer,
                                     php_cli_server_client *client,
                                     bool persistent,
                                     sapi_headers_struct *sapi_headers) /* {{{ */
{
    zval *val;
    struct timeval tv = {0};
    bool append_date_header = true;

    if (sapi_headers != NULL) {
        zend_llist_position pos;
        sapi_header_struct *h = (sapi_header_struct *) zend_llist_get_first_ex(&sapi_headers->headers, &pos);
        while (h) {
            if (h->header_len > strlen("Date:")) {
                if (strncasecmp(h->header, "Date:", strlen("Date:")) == 0) {
                    append_date_header = false;
                    break;
                }
            }
            h = (sapi_header_struct *) zend_llist_get_next_ex(&sapi_headers->headers, &pos);
        }
    }

    if (NULL != (val = zend_hash_find(&client->request.headers, ZSTR_KNOWN(ZEND_STR_HOST)))) {
        smart_str_appends_ex(buffer, "Host: ", persistent);
        smart_str_append_ex(buffer, Z_STR_P(val), persistent);
        smart_str_appends_ex(buffer, "\r\n", persistent);
    }

    if (append_date_header && !gettimeofday(&tv, NULL)) {
        zend_string *dt = php_format_date("D, d M Y H:i:s", sizeof("D, d M Y H:i:s") - 1, tv.tv_sec, 0);
        smart_str_appends_ex(buffer, "Date: ", persistent);
        smart_str_append_ex(buffer, dt, persistent);
        smart_str_appends_ex(buffer, " GMT\r\n", persistent);
        zend_string_release_ex(dt, 0);
    }

    smart_str_appendl_ex(buffer, "Connection: close\r\n", sizeof("Connection: close\r\n") - 1, persistent);
} /* }}} */

static const char *get_mime_type(const php_cli_server *server, const char *ext, size_t ext_len) /* {{{ */
{
    char *ret;
    ALLOCA_FLAG(use_heap)
    char *ext_lower = do_alloca(ext_len + 1, use_heap);
    zend_str_tolower_copy(ext_lower, ext, ext_len);
    ret = zend_hash_str_find_ptr(&server->extension_mime_types, ext_lower, ext_len);
    free_alloca(ext_lower, use_heap);
    return (const char *) ret;
} /* }}} */

static PHP_FUNCTION(apache_request_headers) /* {{{ */
{
    php_cli_server_client *client;

    if (zend_parse_parameters_none() == FAILURE) {
        RETURN_THROWS();
    }

    client = SG(server_context);

    /* Need to duplicate the header HashTable */
    RETURN_ARR(zend_array_dup(&client->request.headers_original_case));
}
/* }}} */

static void add_response_header(sapi_header_struct *h, zval *return_value) /* {{{ */
{
    char *s, *p;
    ptrdiff_t len;
    ALLOCA_FLAG(use_heap)

    if (h->header_len > 0) {
        p = strchr(h->header, ':');
        len = p - h->header;
        if (p && (len > 0)) {
            while (len > 0 && (h->header[len - 1] == ' ' || h->header[len - 1] == '\t')) {
                len--;
            }
            if (len) {
                s = do_alloca(len + 1, use_heap);
                memcpy(s, h->header, len);
                s[len] = 0;
                do {
                    p++;
                } while (*p == ' ' || *p == '\t');
                add_assoc_stringl_ex(return_value, s, (uint32_t) len, p, h->header_len - (p - h->header));
                free_alloca(s, use_heap);
            }
        }
    }
}
/* }}} */

static PHP_FUNCTION(apache_response_headers) /* {{{ */
{
    if (zend_parse_parameters_none() == FAILURE) {
        RETURN_THROWS();
    }

    array_init(return_value);
    zend_llist_apply_with_argument(
        &SG(sapi_headers).headers, (llist_apply_with_arg_func_t) add_response_header, return_value);
}
/* }}} */

/* {{{ cli_server module */

static void cli_server_init_globals(zend_cli_server_globals *cg) {
    cg->color = 0;
}

PHP_INI_BEGIN()
STD_PHP_INI_BOOLEAN(
    "cli_server.color", "0", PHP_INI_ALL, OnUpdateBool, color, zend_cli_server_globals, cli_server_globals)
PHP_INI_END()

static PHP_MINIT_FUNCTION(cli_server) {
    ZEND_INIT_MODULE_GLOBALS(cli_server, cli_server_init_globals, NULL);
    REGISTER_INI_ENTRIES();
    return SUCCESS;
}

static PHP_MSHUTDOWN_FUNCTION(cli_server) {
    UNREGISTER_INI_ENTRIES();
    return SUCCESS;
}

static PHP_MINFO_FUNCTION(cli_server) {
    DISPLAY_INI_ENTRIES();
}

static zend_module_entry cli_server_module_entry = {STANDARD_MODULE_HEADER,
                                                    "cli_server",
                                                    NULL,
                                                    PHP_MINIT(cli_server),
                                                    PHP_MSHUTDOWN(cli_server),
                                                    NULL,
                                                    NULL,
                                                    PHP_MINFO(cli_server),
                                                    PHP_VERSION,
                                                    STANDARD_MODULE_PROPERTIES};
/* }}} */

const zend_function_entry server_additional_functions[] = {
    PHP_FE(cli_set_process_title, arginfo_cli_set_process_title)
        PHP_FE(cli_get_process_title, arginfo_cli_get_process_title)
            PHP_FE(apache_request_headers, arginfo_apache_request_headers)
                PHP_FE(apache_response_headers, arginfo_apache_response_headers)
                    PHP_FALIAS(getallheaders, apache_request_headers, arginfo_getallheaders) PHP_FE_END};

static int sapi_cli_server_startup(sapi_module_struct *sapi_module) /* {{{ */
{
    return php_module_startup(sapi_module, &cli_server_module_entry);
} /* }}} */

static size_t sapi_cli_server_ub_write(const char *str, size_t str_length) /* {{{ */
{
    php_cli_server_client *client = SG(server_context);
    if (!client) {
        return 0;
    }
    return php_cli_server_client_send_through(client, str, str_length);
} /* }}} */

static void sapi_cli_server_flush(void *server_context) /* {{{ */
{
    php_cli_server_client *client = server_context;

    if (!client) {
        return;
    }

    if (!ZEND_VALID_SOCKET(client->sock)) {
        php_handle_aborted_connection();
        return;
    }

    if (!SG(headers_sent)) {
        sapi_send_headers();
        SG(headers_sent) = 1;
    }
} /* }}} */

static int sapi_cli_server_discard_headers(sapi_headers_struct *sapi_headers) /* {{{ */ {
    return SAPI_HEADER_SENT_SUCCESSFULLY;
}
/* }}} */

static int sapi_cli_server_send_headers(sapi_headers_struct *sapi_headers) /* {{{ */
{
    php_cli_server_client *client = SG(server_context);
    smart_str buffer = {0};
    sapi_header_struct *h;
    zend_llist_position pos;

    if (client == NULL || SG(request_info).no_headers) {
        return SAPI_HEADER_SENT_SUCCESSFULLY;
    }

    if (SG(sapi_headers).http_status_line) {
        smart_str_appends(&buffer, SG(sapi_headers).http_status_line);
        smart_str_appendl(&buffer, "\r\n", 2);
    } else {
        append_http_status_line(&buffer, client->request.protocol_version, SG(sapi_headers).http_response_code, 0);
    }

    append_essential_headers(&buffer, client, 0, sapi_headers);

    h = (sapi_header_struct *) zend_llist_get_first_ex(&sapi_headers->headers, &pos);
    while (h) {
        if (h->header_len) {
            smart_str_appendl(&buffer, h->header, h->header_len);
            smart_str_appendl(&buffer, "\r\n", 2);
        }
        h = (sapi_header_struct *) zend_llist_get_next_ex(&sapi_headers->headers, &pos);
    }
    smart_str_appendl(&buffer, "\r\n", 2);

    php_cli_server_client_send_through(client, ZSTR_VAL(buffer.s), ZSTR_LEN(buffer.s));

    smart_str_free(&buffer);
    return SAPI_HEADER_SENT_SUCCESSFULLY;
}
/* }}} */

static char *sapi_cli_server_read_cookies(void) /* {{{ */
{
    php_cli_server_client *client = SG(server_context);
    zval *val;
    if (NULL == (val = zend_hash_str_find(&client->request.headers, "cookie", sizeof("cookie") - 1))) {
        return NULL;
    }
    return Z_STRVAL_P(val);
} /* }}} */

static size_t sapi_cli_server_read_post(char *buf, size_t count_bytes) /* {{{ */
{
    php_cli_server_client *client = SG(server_context);
    if (client->request.content) {
        size_t content_len = client->request.content_len;
        size_t nbytes_copied = MIN(client->post_read_offset + count_bytes, content_len) - client->post_read_offset;
        memmove(buf, client->request.content + client->post_read_offset, nbytes_copied);
        client->post_read_offset += nbytes_copied;
        return nbytes_copied;
    }
    return 0;
} /* }}} */

static void sapi_cli_server_register_variable(zval *track_vars_array, const char *key, const char *val) /* {{{ */
{
    char *new_val = (char *) val;
    size_t new_val_len;

    if (NULL == val) {
        return;
    }

    if (sapi_module.input_filter(PARSE_SERVER, (char *) key, &new_val, strlen(val), &new_val_len)) {
        php_register_variable_safe((char *) key, new_val, new_val_len, track_vars_array);
    }
} /* }}} */

static void sapi_cli_server_register_known_var_char(
    zval *track_vars_array, const char *var_name, size_t var_name_len, const char *value, size_t value_len) {
    zval new_entry;

    if (!value) {
        return;
    }

    ZVAL_STRINGL_FAST(&new_entry, value, value_len);

    php_register_known_variable(var_name, var_name_len, &new_entry, track_vars_array);
}

static void sapi_cli_server_register_known_var_str(zval *track_vars_array,
                                                   const char *var_name,
                                                   size_t var_name_len,
                                                   /* const */ zend_string *value) {
    zval new_entry;

    if (!value) {
        return;
    }

    ZVAL_STR_COPY(&new_entry, value);

    php_register_known_variable(var_name, var_name_len, &new_entry, track_vars_array);
}

/* The entry zval will always contain a zend_string* */
static int sapi_cli_server_register_entry_cb(zval *entry,
                                             int num_args,
                                             va_list args,
                                             zend_hash_key *hash_key) /* {{{ */ {
    zval *track_vars_array = va_arg(args, zval *);

    ZEND_ASSERT(Z_TYPE_P(entry) == IS_STRING);

    if (hash_key->key) {
        char *real_key, *key;
        uint32_t i;
        key = estrndup(ZSTR_VAL(hash_key->key), ZSTR_LEN(hash_key->key));
        for (i = 0; i < ZSTR_LEN(hash_key->key); i++) {
            if (key[i] == '-') {
                key[i] = '_';
            } else {
                key[i] = toupper(key[i]);
            }
        }
        spprintf(&real_key, 0, "%s_%s", "HTTP", key);
        if (strcmp(key, "CONTENT_TYPE") == 0 || strcmp(key, "CONTENT_LENGTH") == 0) {
            /* Is it possible to use sapi_cli_server_register_known_var_char() and not go through the SAPI filter? */
            sapi_cli_server_register_variable(track_vars_array, key, Z_STRVAL_P(entry));
        }
        sapi_cli_server_register_variable(track_vars_array, real_key, Z_STRVAL_P(entry));
        efree(key);
        efree(real_key);
    }

    return ZEND_HASH_APPLY_KEEP;
}
/* }}} */

static void sapi_cli_server_register_variables(zval *track_vars_array) /* {{{ */
{
    php_cli_server_client *client = SG(server_context);

    sapi_cli_server_register_known_var_char(track_vars_array,
                                            "DOCUMENT_ROOT",
                                            strlen("DOCUMENT_ROOT"),
                                            client->server->document_root,
                                            client->server->document_root_len);
    {
        char *tmp;
        if ((tmp = strrchr(ZSTR_VAL(client->addr_str), ':'))) {
            char addr[64], port[8];
            const char *addr_start = ZSTR_VAL(client->addr_str), *addr_end = tmp;
            if (addr_start[0] == '[') addr_start++;
            if (addr_end[-1] == ']') addr_end--;

            strncpy(port, tmp + 1, 8);
            port[7] = '\0';
            size_t addr_len = addr_end - addr_start;
            strncpy(addr, addr_start, addr_len);
            addr[addr_len] = '\0';
            ZEND_ASSERT(addr_len == strlen(addr));
            sapi_cli_server_register_known_var_char(
                track_vars_array, "REMOTE_ADDR", strlen("REMOTE_ADDR"), addr, addr_len);
            sapi_cli_server_register_known_var_char(
                track_vars_array, "REMOTE_PORT", strlen("REMOTE_PORT"), port, strlen(port));
        } else {
            sapi_cli_server_register_known_var_str(
                track_vars_array, "REMOTE_ADDR", strlen("REMOTE_ADDR"), client->addr_str);
        }
    }
    {
        zend_string *tmp = strpprintf(0, "PHP/%s (Development Server)", PHP_VERSION);
        sapi_cli_server_register_known_var_str(track_vars_array, "SERVER_SOFTWARE", strlen("SERVER_SOFTWARE"), tmp);
        zend_string_release_ex(tmp, /* persistent */ false);
    }
    {
        zend_string *tmp =
            strpprintf(0, "HTTP/%d.%d", client->request.protocol_version / 100, client->request.protocol_version % 100);
        sapi_cli_server_register_known_var_str(track_vars_array, "SERVER_PROTOCOL", strlen("SERVER_PROTOCOL"), tmp);
        zend_string_release_ex(tmp, /* persistent */ false);
    }
    sapi_cli_server_register_known_var_char(
        track_vars_array, "SERVER_NAME", strlen("SERVER_NAME"), client->server->host, strlen(client->server->host));
    {
        zend_string *tmp = strpprintf(0, "%i", client->server->port);
        sapi_cli_server_register_known_var_str(track_vars_array, "SERVER_PORT", strlen("SERVER_PORT"), tmp);
        zend_string_release_ex(tmp, /* persistent */ false);
    }

    sapi_cli_server_register_known_var_str(
        track_vars_array, "REQUEST_URI", strlen("REQUEST_URI"), client->request.request_uri);
    sapi_cli_server_register_known_var_char(track_vars_array,
                                            "REQUEST_METHOD",
                                            strlen("REQUEST_METHOD"),
                                            SG(request_info).request_method,
                                            strlen(SG(request_info).request_method));
    sapi_cli_server_register_known_var_char(
        track_vars_array, "SCRIPT_NAME", strlen("SCRIPT_NAME"), client->request.vpath, client->request.vpath_len);
    if (SG(request_info).path_translated) {
        sapi_cli_server_register_known_var_char(track_vars_array,
                                                "SCRIPT_FILENAME",
                                                strlen("SCRIPT_FILENAME"),
                                                SG(request_info).path_translated,
                                                strlen(SG(request_info).path_translated));
    } else if (client->server->router) {
        sapi_cli_server_register_known_var_char(track_vars_array,
                                                "SCRIPT_FILENAME",
                                                strlen("SCRIPT_FILENAME"),
                                                client->server->router,
                                                client->server->router_len);
    }
    if (client->request.path_info) {
        sapi_cli_server_register_known_var_char(track_vars_array,
                                                "PATH_INFO",
                                                strlen("PATH_INFO"),
                                                client->request.path_info,
                                                client->request.path_info_len);
    }
    if (client->request.path_info_len) {
        zend_string *tmp = strpprintf(0, "%s%s", client->request.vpath, client->request.path_info);
        sapi_cli_server_register_known_var_str(track_vars_array, "PHP_SELF", strlen("PHP_SELF"), tmp);
        zend_string_release_ex(tmp, /* persistent */ false);
    } else {
        sapi_cli_server_register_known_var_char(
            track_vars_array, "PHP_SELF", strlen("PHP_SELF"), client->request.vpath, client->request.vpath_len);
    }
    if (client->request.query_string) {
        /* Use sapi_cli_server_register_variable() to pass query string through SAPI input filter,
         * and check keys are proper PHP var names */
        sapi_cli_server_register_variable(track_vars_array, "QUERY_STRING", client->request.query_string);
    }
    /* Use sapi_cli_server_register_variable() to pass header values through SAPI input filter,
     * and check keys are proper PHP var names */
    zend_hash_apply_with_arguments(
        &client->request.headers, (apply_func_args_t) sapi_cli_server_register_entry_cb, 1, track_vars_array);
} /* }}} */

static void sapi_cli_server_log_write(int type, const char *msg) /* {{{ */
{
    char buf[52];

    if (php_cli_server_log_level < type) {
        return;
    }

    if (!php_cli_server_get_system_time(buf)) {
        memmove(buf, "unknown time, can't be fetched", sizeof("unknown time, can't be fetched"));
    } else {
        size_t l = strlen(buf);
        if (l > 0) {
            buf[l - 1] = '\0';
        } else {
            memmove(buf, "unknown", sizeof("unknown"));
        }
    }
#ifdef HAVE_FORK
    if (php_cli_server_workers_max > 1) {
        fprintf(stderr, "[%ld] [%s] %s\n", (long) getpid(), buf, msg);
    } else {
        fprintf(stderr, "[%s] %s\n", buf, msg);
    }
#else
    fprintf(stderr, "[%s] %s\n", buf, msg);
#endif
} /* }}} */

static void sapi_cli_server_log_message(const char *msg, int syslog_type_int) /* {{{ */
{
    sapi_cli_server_log_write(PHP_CLI_SERVER_LOG_MESSAGE, msg);
} /* }}} */

/* {{{ sapi_module_struct cli_server_sapi_module */
sapi_module_struct cli_server_sapi_module = {"cli-server",           /* name */
                                             "Built-in HTTP server", /* pretty name */

                                             sapi_cli_server_startup,     /* startup */
                                             php_module_shutdown_wrapper, /* shutdown */

                                             NULL, /* activate */
                                             NULL, /* deactivate */

                                             sapi_cli_server_ub_write, /* unbuffered write */
                                             sapi_cli_server_flush,    /* flush */
                                             NULL,                     /* get uid */
                                             NULL,                     /* getenv */

                                             php_error, /* error handler */

                                             NULL,                         /* header handler */
                                             sapi_cli_server_send_headers, /* send headers handler */
                                             NULL,                         /* send header handler */

                                             sapi_cli_server_read_post,    /* read POST data */
                                             sapi_cli_server_read_cookies, /* read Cookies */

                                             sapi_cli_server_register_variables, /* register server variables */
                                             sapi_cli_server_log_message,        /* Log message */
                                             NULL,                               /* Get request time */
                                             NULL,                               /* Child terminate */

                                             STANDARD_SAPI_MODULE_PROPERTIES}; /* }}} */

static void php_cli_server_poller_ctor(php_cli_server_poller *poller) /* {{{ */
{
    FD_ZERO(&poller->rfds);
    FD_ZERO(&poller->wfds);
    poller->max_fd = -1;
} /* }}} */

static void php_cli_server_poller_add(php_cli_server_poller *poller, int mode, php_socket_t fd) /* {{{ */
{
    if (mode & POLLIN) {
        PHP_SAFE_FD_SET(fd, &poller->rfds);
    }
    if (mode & POLLOUT) {
        PHP_SAFE_FD_SET(fd, &poller->wfds);
    }
    if (fd > poller->max_fd) {
        poller->max_fd = fd;
    }
} /* }}} */

static void php_cli_server_poller_remove(php_cli_server_poller *poller, int mode, php_socket_t fd) /* {{{ */
{
    if (mode & POLLIN) {
        PHP_SAFE_FD_CLR(fd, &poller->rfds);
    }
    if (mode & POLLOUT) {
        PHP_SAFE_FD_CLR(fd, &poller->wfds);
    }
#ifndef PHP_WIN32
    if (fd == poller->max_fd) {
        while (fd > 0) {
            fd--;
            if (PHP_SAFE_FD_ISSET(fd, &poller->rfds) || PHP_SAFE_FD_ISSET(fd, &poller->wfds)) {
                break;
            }
        }
        poller->max_fd = fd;
    }
#endif
} /* }}} */

static int php_cli_server_poller_poll(php_cli_server_poller *poller, struct timeval *tv) /* {{{ */
{
    memmove(&poller->active.rfds, &poller->rfds, sizeof(poller->rfds));
    memmove(&poller->active.wfds, &poller->wfds, sizeof(poller->wfds));
    return php_select(poller->max_fd + 1, &poller->active.rfds, &poller->active.wfds, NULL, tv);
} /* }}} */

static zend_result php_cli_server_poller_iter_on_active(
    php_cli_server_poller *poller, void *opaque, zend_result (*callback)(void *, php_socket_t fd, int events)) /* {{{ */
{
    zend_result retval = SUCCESS;
#ifdef PHP_WIN32
    struct socket_entry {
        SOCKET fd;
        int events;
    } entries[FD_SETSIZE * 2];
    size_t i;
    struct socket_entry *n = entries, *m;

    for (i = 0; i < poller->active.rfds.fd_count; i++) {
        n->events = POLLIN;
        n->fd = poller->active.rfds.fd_array[i];
        n++;
    }

    m = n;
    for (i = 0; i < poller->active.wfds.fd_count; i++) {
        struct socket_entry *e;
        SOCKET fd = poller->active.wfds.fd_array[i];
        for (e = entries; e < m; e++) {
            if (e->fd == fd) {
                e->events |= POLLOUT;
            }
        }
        if (e == m) {
            assert(n < entries + FD_SETSIZE * 2);
            n->events = POLLOUT;
            n->fd = fd;
            n++;
        }
    }

    {
        struct socket_entry *e = entries;
        for (; e < n; e++) {
            if (SUCCESS != callback(opaque, e->fd, e->events)) {
                retval = FAILURE;
            }
        }
    }

#else
    php_socket_t fd;
    const php_socket_t max_fd = poller->max_fd;

    for (fd = 0; fd <= max_fd; fd++) {
        if (PHP_SAFE_FD_ISSET(fd, &poller->active.rfds)) {
            if (SUCCESS != callback(opaque, fd, POLLIN)) {
                retval = FAILURE;
            }
        }
        if (PHP_SAFE_FD_ISSET(fd, &poller->active.wfds)) {
            if (SUCCESS != callback(opaque, fd, POLLOUT)) {
                retval = FAILURE;
            }
        }
    }
#endif
    return retval;
} /* }}} */

static size_t php_cli_server_chunk_size(const php_cli_server_chunk *chunk) /* {{{ */
{
    switch (chunk->type) {
    case PHP_CLI_SERVER_CHUNK_HEAP:
        return chunk->data.heap.len;
    case PHP_CLI_SERVER_CHUNK_IMMORTAL:
        return chunk->data.immortal.len;
    }
    return 0;
} /* }}} */

static void php_cli_server_chunk_dtor(php_cli_server_chunk *chunk) /* {{{ */
{
    switch (chunk->type) {
    case PHP_CLI_SERVER_CHUNK_HEAP:
        if (chunk->data.heap.block != chunk) {
            pefree(chunk->data.heap.block, 1);
        }
        break;
    case PHP_CLI_SERVER_CHUNK_IMMORTAL:
        break;
    }
} /* }}} */

static void php_cli_server_buffer_dtor(php_cli_server_buffer *buffer) /* {{{ */
{
    php_cli_server_chunk *chunk, *next;
    for (chunk = buffer->first; chunk; chunk = next) {
        next = chunk->next;
        php_cli_server_chunk_dtor(chunk);
        pefree(chunk, 1);
    }
} /* }}} */

static void php_cli_server_buffer_ctor(php_cli_server_buffer *buffer) /* {{{ */
{
    buffer->first = NULL;
    buffer->last = NULL;
} /* }}} */

static void php_cli_server_buffer_append(php_cli_server_buffer *buffer, php_cli_server_chunk *chunk) /* {{{ */
{
    php_cli_server_chunk *last;
    for (last = chunk; last->next; last = last->next)
        ;
    if (!buffer->last) {
        buffer->first = chunk;
    } else {
        buffer->last->next = chunk;
    }
    buffer->last = last;
} /* }}} */

static void php_cli_server_buffer_prepend(php_cli_server_buffer *buffer, php_cli_server_chunk *chunk) /* {{{ */
{
    php_cli_server_chunk *last;
    for (last = chunk; last->next; last = last->next)
        ;
    last->next = buffer->first;
    if (!buffer->last) {
        buffer->last = last;
    }
    buffer->first = chunk;
} /* }}} */

static size_t php_cli_server_buffer_size(const php_cli_server_buffer *buffer) /* {{{ */
{
    php_cli_server_chunk *chunk;
    size_t retval = 0;
    for (chunk = buffer->first; chunk; chunk = chunk->next) {
        retval += php_cli_server_chunk_size(chunk);
    }
    return retval;
} /* }}} */

static php_cli_server_chunk *php_cli_server_chunk_immortal_new(const char *buf, size_t len) /* {{{ */
{
    php_cli_server_chunk *chunk = pemalloc(sizeof(php_cli_server_chunk), 1);

    chunk->type = PHP_CLI_SERVER_CHUNK_IMMORTAL;
    chunk->next = NULL;
    chunk->data.immortal.p = buf;
    chunk->data.immortal.len = len;
    return chunk;
} /* }}} */

static php_cli_server_chunk *php_cli_server_chunk_heap_new(void *block, char *buf, size_t len) /* {{{ */
{
    php_cli_server_chunk *chunk = pemalloc(sizeof(php_cli_server_chunk), 1);

    chunk->type = PHP_CLI_SERVER_CHUNK_HEAP;
    chunk->next = NULL;
    chunk->data.heap.block = block;
    chunk->data.heap.p = buf;
    chunk->data.heap.len = len;
    return chunk;
} /* }}} */

static php_cli_server_chunk *php_cli_server_chunk_heap_new_self_contained(size_t len) /* {{{ */
{
    php_cli_server_chunk *chunk = pemalloc(sizeof(php_cli_server_chunk) + len, 1);

    chunk->type = PHP_CLI_SERVER_CHUNK_HEAP;
    chunk->next = NULL;
    chunk->data.heap.block = chunk;
    chunk->data.heap.p = (char *) (chunk + 1);
    chunk->data.heap.len = len;
    return chunk;
} /* }}} */

static void php_cli_server_content_sender_dtor(php_cli_server_content_sender *sender) /* {{{ */
{
    php_cli_server_buffer_dtor(&sender->buffer);
} /* }}} */

static void php_cli_server_content_sender_ctor(php_cli_server_content_sender *sender) /* {{{ */
{
    php_cli_server_buffer_ctor(&sender->buffer);
} /* }}} */

static int php_cli_server_content_sender_send(php_cli_server_content_sender *sender,
                                              php_socket_t fd,
                                              size_t *nbytes_sent_total) /* {{{ */
{
    php_cli_server_chunk *chunk, *next;
    size_t _nbytes_sent_total = 0;

    for (chunk = sender->buffer.first; chunk; chunk = next) {
#ifdef PHP_WIN32
        int nbytes_sent;
#else
        ssize_t nbytes_sent;
#endif
        next = chunk->next;

        switch (chunk->type) {
        case PHP_CLI_SERVER_CHUNK_HEAP:
#ifdef PHP_WIN32
            nbytes_sent = send(fd, chunk->data.heap.p, (int) chunk->data.heap.len, 0);
#else
            nbytes_sent = send(fd, chunk->data.heap.p, chunk->data.heap.len, 0);
#endif
            if (nbytes_sent < 0) {
                *nbytes_sent_total = _nbytes_sent_total;
                return php_socket_errno();
#ifdef PHP_WIN32
            } else if (nbytes_sent == chunk->data.heap.len) {
#else
            } else if (nbytes_sent == (ssize_t) chunk->data.heap.len) {
#endif
                php_cli_server_chunk_dtor(chunk);
                pefree(chunk, 1);
                sender->buffer.first = next;
                if (!next) {
                    sender->buffer.last = NULL;
                }
            } else {
                chunk->data.heap.p += nbytes_sent;
                chunk->data.heap.len -= nbytes_sent;
            }
            _nbytes_sent_total += nbytes_sent;
            break;

        case PHP_CLI_SERVER_CHUNK_IMMORTAL:
#ifdef PHP_WIN32
            nbytes_sent = send(fd, chunk->data.immortal.p, (int) chunk->data.immortal.len, 0);
#else
            nbytes_sent = send(fd, chunk->data.immortal.p, chunk->data.immortal.len, 0);
#endif
            if (nbytes_sent < 0) {
                *nbytes_sent_total = _nbytes_sent_total;
                return php_socket_errno();
#ifdef PHP_WIN32
            } else if (nbytes_sent == chunk->data.immortal.len) {
#else
            } else if (nbytes_sent == (ssize_t) chunk->data.immortal.len) {
#endif
                php_cli_server_chunk_dtor(chunk);
                pefree(chunk, 1);
                sender->buffer.first = next;
                if (!next) {
                    sender->buffer.last = NULL;
                }
            } else {
                chunk->data.immortal.p += nbytes_sent;
                chunk->data.immortal.len -= nbytes_sent;
            }
            _nbytes_sent_total += nbytes_sent;
            break;
        }
    }
    *nbytes_sent_total = _nbytes_sent_total;
    return 0;
} /* }}} */

static bool php_cli_server_content_sender_pull(php_cli_server_content_sender *sender,
                                               int fd,
                                               size_t *nbytes_read) /* {{{ */
{
#ifdef PHP_WIN32
    int _nbytes_read;
#else
    ssize_t _nbytes_read;
#endif
    php_cli_server_chunk *chunk = php_cli_server_chunk_heap_new_self_contained(131072);

#ifdef PHP_WIN32
    _nbytes_read = read(fd, chunk->data.heap.p, (unsigned int) chunk->data.heap.len);
#else
    _nbytes_read = read(fd, chunk->data.heap.p, chunk->data.heap.len);
#endif
    if (_nbytes_read < 0) {
        if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
            char *errstr = get_last_error();
            php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "%s", errstr);
            pefree(errstr, 1);
        }
        php_cli_server_chunk_dtor(chunk);
        pefree(chunk, 1);
        return false;
    }
    chunk->data.heap.len = _nbytes_read;
    php_cli_server_buffer_append(&sender->buffer, chunk);
    *nbytes_read = _nbytes_read;
    return true;
} /* }}} */

#ifdef HAVE_UNISTD_H
static int php_cli_is_output_tty(void) /* {{{ */
{
    if (php_cli_output_is_tty == OUTPUT_NOT_CHECKED) {
        php_cli_output_is_tty = isatty(STDOUT_FILENO);
    }
    return php_cli_output_is_tty;
} /* }}} */
#elif defined(PHP_WIN32)
static int php_cli_is_output_tty() /* {{{ */
{
    if (php_cli_output_is_tty == OUTPUT_NOT_CHECKED) {
        php_cli_output_is_tty =
            php_win32_console_fileno_is_console(STDOUT_FILENO) && php_win32_console_fileno_has_vt100(STDOUT_FILENO);
    }
    return php_cli_output_is_tty;
} /* }}} */
#endif

static void php_cli_server_log_response(php_cli_server_client *client, int status, const char *message) /* {{{ */
{
    int color = 0, effective_status = status;
    char *basic_buf, *message_buf = "", *error_buf = "";
    bool append_error_message = 0;

    if (PG(last_error_message)) {
        if (PG(last_error_type) & E_FATAL_ERRORS) {
            if (status == 200) {
                /* the status code isn't changed by a fatal error, so fake it */
                effective_status = 500;
            }

            append_error_message = 1;
        }
    }

#if defined(HAVE_UNISTD_H) || defined(PHP_WIN32)
    if (CLI_SERVER_G(color) && php_cli_is_output_tty() == OUTPUT_IS_TTY) {
        if (effective_status >= 500) {
            /* server error: red */
            color = 1;
        } else if (effective_status >= 400) {
            /* client error: yellow */
            color = 3;
        } else if (effective_status >= 200) {
            /* success: green */
            color = 2;
        }
    }
#endif

    /* basic */
    spprintf(&basic_buf,
             0,
             "%s [%d]: %s %s",
             ZSTR_VAL(client->addr_str),
             status,
             php_http_method_str(client->request.request_method),
             ZSTR_VAL(client->request.request_uri));
    if (!basic_buf) {
        return;
    }

    /* message */
    if (message) {
        spprintf(&message_buf, 0, " - %s", message);
        if (!message_buf) {
            efree(basic_buf);
            return;
        }
    }

    /* error */
    if (append_error_message) {
        spprintf(&error_buf,
                 0,
                 " - %s in %s on line %d",
                 ZSTR_VAL(PG(last_error_message)),
                 ZSTR_VAL(PG(last_error_file)),
                 PG(last_error_lineno));
        if (!error_buf) {
            efree(basic_buf);
            if (message) {
                efree(message_buf);
            }
            return;
        }
    }

    if (color) {
        php_cli_server_logf(
            PHP_CLI_SERVER_LOG_MESSAGE, "\x1b[3%dm%s%s%s\x1b[0m", color, basic_buf, message_buf, error_buf);
    } else {
        php_cli_server_logf(PHP_CLI_SERVER_LOG_MESSAGE, "%s%s%s", basic_buf, message_buf, error_buf);
    }

    efree(basic_buf);
    if (message) {
        efree(message_buf);
    }
    if (append_error_message) {
        efree(error_buf);
    }
} /* }}} */

static void php_cli_server_logf(int type, const char *format, ...) /* {{{ */
{
    char *buf = NULL;
    va_list ap;

    if (php_cli_server_log_level < type) {
        return;
    }

    va_start(ap, format);
    vspprintf(&buf, 0, format, ap);
    va_end(ap);

    if (!buf) {
        return;
    }

    sapi_cli_server_log_write(type, buf);

    efree(buf);
} /* }}} */

static php_socket_t php_network_listen_socket(
    const char *host, int *port, int socktype, int *af, socklen_t *socklen, zend_string **errstr) /* {{{ */
{
    php_socket_t retval = SOCK_ERR;
    int err = 0;
    struct sockaddr *sa = NULL, **p, **sal;

    int num_addrs = php_network_getaddresses(host, socktype, &sal, errstr);
    if (num_addrs == 0) {
        return -1;
    }
    for (p = sal; *p; p++) {
        if (sa) {
            pefree(sa, 1);
            sa = NULL;
        }

        retval = socket((*p)->sa_family, socktype, 0);
        if (retval == SOCK_ERR) {
            continue;
        }

        switch ((*p)->sa_family) {
#if defined(HAVE_GETADDRINFO) && defined(HAVE_IPV6)
        case AF_INET6:
            sa = pemalloc(sizeof(struct sockaddr_in6), 1);
            *(struct sockaddr_in6 *) sa = *(struct sockaddr_in6 *) *p;
            ((struct sockaddr_in6 *) sa)->sin6_port = htons(*port);
            *socklen = sizeof(struct sockaddr_in6);
            break;
#endif
        case AF_INET:
            sa = pemalloc(sizeof(struct sockaddr_in), 1);
            *(struct sockaddr_in *) sa = *(struct sockaddr_in *) *p;
            ((struct sockaddr_in *) sa)->sin_port = htons(*port);
            *socklen = sizeof(struct sockaddr_in);
            break;
        default:
            /* Unknown family */
            *socklen = 0;
            closesocket(retval);
            continue;
        }

#ifdef SO_REUSEADDR
        {
            int val = 1;
            setsockopt(retval, SOL_SOCKET, SO_REUSEADDR, (char *) &val, sizeof(val));
        }
#endif

        if (bind(retval, sa, *socklen) == SOCK_CONN_ERR) {
            err = php_socket_errno();
            if (err == SOCK_EINVAL || err == SOCK_EADDRINUSE) {
                goto out;
            }
            closesocket(retval);
            retval = SOCK_ERR;
            continue;
        }
        err = 0;

        *af = sa->sa_family;
        if (*port == 0) {
            if (getsockname(retval, sa, socklen)) {
                err = php_socket_errno();
                goto out;
            }
            switch (sa->sa_family) {
#if defined(HAVE_GETADDRINFO) && defined(HAVE_IPV6)
            case AF_INET6:
                *port = ntohs(((struct sockaddr_in6 *) sa)->sin6_port);
                break;
#endif
            case AF_INET:
                *port = ntohs(((struct sockaddr_in *) sa)->sin_port);
                break;
            }
        }

        break;
    }

    if (retval == SOCK_ERR) {
        goto out;
    }

    if (listen(retval, SOMAXCONN)) {
        err = php_socket_errno();
        goto out;
    }

out:
    if (sa) {
        pefree(sa, 1);
    }
    if (sal) {
        php_network_freeaddresses(sal);
    }
    if (err) {
        if (ZEND_VALID_SOCKET(retval)) {
            closesocket(retval);
        }
        if (errstr) {
            *errstr = php_socket_error_str(err);
        }
        return SOCK_ERR;
    }
    return retval;
} /* }}} */

static void php_cli_server_request_ctor(php_cli_server_request *req) /* {{{ */
{
    req->protocol_version = 0;
    req->request_uri = NULL;
    req->vpath = NULL;
    req->vpath_len = 0;
    req->path_translated = NULL;
    req->path_translated_len = 0;
    req->path_info = NULL;
    req->path_info_len = 0;
    req->query_string = NULL;
    req->query_string_len = 0;
    zend_hash_init(&req->headers, 0, NULL, cli_header_value_dtor, 1);
    /* No destructor is registered as the value pointed by is the same as for &req->headers */
    GC_MAKE_PERSISTENT_LOCAL(&req->headers);
    zend_hash_init(&req->headers_original_case, 0, NULL, NULL, 1);
    GC_MAKE_PERSISTENT_LOCAL(&req->headers_original_case);
    req->content = NULL;
    req->content_len = 0;
    req->ext = NULL;
    req->ext_len = 0;
} /* }}} */

static void php_cli_server_request_dtor(php_cli_server_request *req) /* {{{ */
{
    if (req->request_uri) {
        zend_string_release_ex(req->request_uri, /* persistent */ true);
    }
    if (req->vpath) {
        pefree(req->vpath, 1);
    }
    if (req->path_translated) {
        pefree(req->path_translated, 1);
    }
    if (req->path_info) {
        pefree(req->path_info, 1);
    }
    if (req->query_string) {
        pefree(req->query_string, 1);
    }
    zend_hash_destroy(&req->headers);
    zend_hash_destroy(&req->headers_original_case);
    if (req->content) {
        pefree(req->content, 1);
    }
} /* }}} */

static void php_cli_server_request_translate_vpath(const php_cli_server *server,
                                                   php_cli_server_request *request,
                                                   const char *document_root,
                                                   size_t document_root_len) /* {{{ */
{
    zend_stat_t sb = {0};
    static const char *index_files[] = {"index.php", "index.html", NULL};
    char *buf = safe_pemalloc(1, request->vpath_len, 1 + document_root_len + 1 + sizeof("index.html"), 1);
    char *p = buf, *prev_path = NULL, *q, *vpath;
    size_t prev_path_len = 0;

    memmove(p, document_root, document_root_len);
    p += document_root_len;
    vpath = p;
    if (request->vpath_len != 0) {
        if (request->vpath[0] != '/') {
            *p++ = DEFAULT_SLASH;
        }
        memmove(p, request->vpath, request->vpath_len);
#ifdef PHP_WIN32
        q = p + request->vpath_len;
        do {
            if (*q == '/') {
                *q = '\\';
            }
        } while (q-- > p);
#endif
        p += request->vpath_len;
    }
    *p = '\0';
    q = p;
    while (q > buf) {
        if (!php_sys_stat(buf, &sb)) {
            if (sb.st_mode & S_IFDIR) {
                const char **file = index_files;
                if (q[-1] != DEFAULT_SLASH) {
                    *q++ = DEFAULT_SLASH;
                }
                while (*file) {
                    size_t l = strlen(*file);
                    memmove(q, *file, l + 1);
                    if (!php_sys_stat(buf, &sb) && (sb.st_mode & S_IFREG)) {
                        q += l;
                        break;
                    }
                    file++;
                }
                if (!*file) {
                    if (prev_path) {
                        pefree(prev_path, 1);
                    }
                    pefree(buf, 1);
                    return;
                }
            }
            break; /* regular file */
        }
        if (prev_path) {
            pefree(prev_path, 1);
            *q = DEFAULT_SLASH;
        }
        while (q > buf && *(--q) != DEFAULT_SLASH)
            ;
        prev_path_len = p - q;
        prev_path = pestrndup(q, prev_path_len, 1);
        *q = '\0';
    }
    if (prev_path) {
        request->path_info_len = prev_path_len;
#ifdef PHP_WIN32
        while (prev_path_len--) {
            if (prev_path[prev_path_len] == '\\') {
                prev_path[prev_path_len] = '/';
            }
        }
#endif
        request->path_info = prev_path;
        pefree(request->vpath, 1);
        request->vpath = pestrndup(vpath, q - vpath, 1);
        request->vpath_len = q - vpath;
        request->path_translated = buf;
        request->path_translated_len = q - buf;
    } else {
        pefree(request->vpath, 1);
        request->vpath = pestrndup(vpath, q - vpath, 1);
        request->vpath_len = q - vpath;
        request->path_translated = buf;
        request->path_translated_len = q - buf;
    }
#ifdef PHP_WIN32
    {
        uint32_t i = 0;
        for (; i < request->vpath_len; i++) {
            if (request->vpath[i] == '\\') {
                request->vpath[i] = '/';
            }
        }
    }
#endif
    request->sb = sb;
} /* }}} */

static void normalize_vpath(
    char **retval, size_t *retval_len, const char *vpath, size_t vpath_len, int persistent) /* {{{ */
{
    char *decoded_vpath = NULL;
    char *decoded_vpath_end;
    char *p;

    *retval = NULL;
    *retval_len = 0;

    decoded_vpath = pestrndup(vpath, vpath_len, persistent);
    if (!decoded_vpath) {
        return;
    }

    decoded_vpath_end = decoded_vpath + php_raw_url_decode(decoded_vpath, (int) vpath_len);

#ifdef PHP_WIN32
    {
        char *p = decoded_vpath;

        do {
            if (*p == '\\') {
                *p = '/';
            }
        } while (*p++);
    }
#endif

    p = decoded_vpath;

    if (p < decoded_vpath_end && *p == '/') {
        char *n = p;
        while (n < decoded_vpath_end && *n == '/') n++;
        memmove(++p, n, decoded_vpath_end - n);
        decoded_vpath_end -= n - p;
    }

    while (p < decoded_vpath_end) {
        char *n = p;
        while (n < decoded_vpath_end && *n != '/') n++;
        if (n - p == 2 && p[0] == '.' && p[1] == '.') {
            if (p > decoded_vpath) {
                --p;
                for (;;) {
                    if (p == decoded_vpath) {
                        if (*p == '/') {
                            p++;
                        }
                        break;
                    }
                    if (*(--p) == '/') {
                        p++;
                        break;
                    }
                }
            }
            while (n < decoded_vpath_end && *n == '/') n++;
            memmove(p, n, decoded_vpath_end - n);
            decoded_vpath_end -= n - p;
        } else if (n - p == 1 && p[0] == '.') {
            while (n < decoded_vpath_end && *n == '/') n++;
            memmove(p, n, decoded_vpath_end - n);
            decoded_vpath_end -= n - p;
        } else {
            if (n < decoded_vpath_end) {
                char *nn = n;
                while (nn < decoded_vpath_end && *nn == '/') nn++;
                p = n + 1;
                memmove(p, nn, decoded_vpath_end - nn);
                decoded_vpath_end -= nn - p;
            } else {
                p = n;
            }
        }
    }

    *decoded_vpath_end = '\0';
    *retval = decoded_vpath;
    *retval_len = decoded_vpath_end - decoded_vpath;
} /* }}} */

// TODO Update these functions and php_http_parser.h
/* {{{ php_cli_server_client_read_request */
static int php_cli_server_client_read_request_on_message_begin(php_http_parser *parser) {
    return 0;
}

static int php_cli_server_client_read_request_on_path(php_http_parser *parser, const char *at, size_t length) {
    php_cli_server_client *client = parser->data;
    {
        char *vpath;
        size_t vpath_len;
        if (UNEXPECTED(client->request.vpath != NULL)) {
            return 1;
        }
        normalize_vpath(&vpath, &vpath_len, at, length, 1);
        client->request.vpath = vpath;
        client->request.vpath_len = vpath_len;
    }
    return 0;
}

static int php_cli_server_client_read_request_on_query_string(php_http_parser *parser, const char *at, size_t length) {
    php_cli_server_client *client = parser->data;
    if (EXPECTED(client->request.query_string == NULL)) {
        client->request.query_string = pestrndup(at, length, 1);
        client->request.query_string_len = length;
    } else {
        ZEND_ASSERT(length <= PHP_HTTP_MAX_HEADER_SIZE &&
                    PHP_HTTP_MAX_HEADER_SIZE - length >= client->request.query_string_len);
        client->request.query_string =
            perealloc(client->request.query_string, client->request.query_string_len + length + 1, 1);
        memcpy(client->request.query_string + client->request.query_string_len, at, length);
        client->request.query_string_len += length;
        client->request.query_string[client->request.query_string_len] = '\0';
    }
    return 0;
}

static int php_cli_server_client_read_request_on_url(php_http_parser *parser, const char *at, size_t length) {
    php_cli_server_client *client = parser->data;
    if (EXPECTED(client->request.request_uri == NULL)) {
        client->request.request_method = parser->method;
        client->request.request_uri = zend_string_init(at, length, /* persistent */ true);
        GC_MAKE_PERSISTENT_LOCAL(client->request.request_uri);
    } else {
        ZEND_ASSERT(client->request.request_method == parser->method);
        ZEND_ASSERT(length <= PHP_HTTP_MAX_HEADER_SIZE &&
                    PHP_HTTP_MAX_HEADER_SIZE - length >= client->request.query_string_len);
        /* Extend URI, append content to it */
        client->request.request_uri = cli_concat_persistent_zstr_with_char(client->request.request_uri, at, length);
    }
    return 0;
}

static int php_cli_server_client_read_request_on_fragment(php_http_parser *parser, const char *at, size_t length) {
    return 0;
}

static void php_cli_server_client_save_header(php_cli_server_client *client) {
    /* Wrap header value in a zval to add is to the HashTable which acts as an array */
    zval tmp;
    /* strip off the colon */
    zend_string *lc_header_name = zend_string_tolower_ex(client->current_header_name, /* persistent */ true);
    GC_MAKE_PERSISTENT_LOCAL(lc_header_name);

    zval *entry = zend_hash_find(&client->request.headers, lc_header_name);
    bool with_comma = !zend_string_equals_literal(lc_header_name, "set-cookie");

    /**
     * `Set-Cookie` HTTP header being the exception, they can have 1 or more values separated
     * by a comma while still possibly be set separately by the client.
     **/
    if (!with_comma || entry == NULL) {
        ZVAL_STR(&tmp, client->current_header_value);
    } else {
        zend_string *curval = Z_STR_P(entry);
        zend_string *newval = zend_string_safe_alloc(
            1, ZSTR_LEN(curval), ZSTR_LEN(client->current_header_value) + 2, /* persistent */ true);

        memcpy(ZSTR_VAL(newval), ZSTR_VAL(curval), ZSTR_LEN(curval));
        memcpy(ZSTR_VAL(newval) + ZSTR_LEN(curval), ", ", 2);
        memcpy(ZSTR_VAL(newval) + ZSTR_LEN(curval) + 2,
               ZSTR_VAL(client->current_header_value),
               ZSTR_LEN(client->current_header_value) + 1);

        ZVAL_STR(&tmp, newval);
    }

    /* Add/Update the wrapped zend_string to the HashTable */
    zend_hash_update(&client->request.headers, lc_header_name, &tmp);
    zend_hash_update(&client->request.headers_original_case, client->current_header_name, &tmp);

    zend_string_release_ex(lc_header_name, /* persistent */ true);
    zend_string_release_ex(client->current_header_name, /* persistent */ true);

    client->current_header_name = NULL;
    client->current_header_value = NULL;
}

static zend_string *cli_concat_persistent_zstr_with_char(zend_string *old_str, const char *at, size_t length) {
    /* Assert that there is only one reference to the string, as then zend_string_extends()
     * will reallocate it such that we do not need to release the old value. */
    ZEND_ASSERT(GC_REFCOUNT(old_str) == 1);
    /* Previous element was part of header value, append content to it */
    size_t old_length = ZSTR_LEN(old_str);
    zend_string *str = zend_string_extend(old_str, old_length + length, /* persistent */ true);
    memcpy(ZSTR_VAL(str) + old_length, at, length);
    // Null terminate
    ZSTR_VAL(str)[ZSTR_LEN(str)] = '\0';
    return str;
}

static int php_cli_server_client_read_request_on_header_field(php_http_parser *parser, const char *at, size_t length) {
    php_cli_server_client *client = parser->data;
    switch (client->last_header_element) {
    case HEADER_VALUE:
        /* Save previous header before creating new one */
        php_cli_server_client_save_header(client);
        ZEND_FALLTHROUGH;
    case HEADER_NONE:
        /* Create new header field */
        client->current_header_name = zend_string_init(at, length, /* persistent */ true);
        GC_MAKE_PERSISTENT_LOCAL(client->current_header_name);
        break;
    case HEADER_FIELD: {
        /* Append header name to the previous value of it */
        client->current_header_name = cli_concat_persistent_zstr_with_char(client->current_header_name, at, length);
        break;
    }
    }

    client->last_header_element = HEADER_FIELD;
    return 0;
}

static int php_cli_server_client_read_request_on_header_value(php_http_parser *parser, const char *at, size_t length) {
    php_cli_server_client *client = parser->data;
    switch (client->last_header_element) {
    case HEADER_FIELD:
        /* Previous element was the header field, create the header value */
        client->current_header_value = zend_string_init(at, length, /* persistent */ true);
        GC_MAKE_PERSISTENT_LOCAL(client->current_header_value);
        break;
    case HEADER_VALUE: {
        /* Append header value to the previous value of it */
        client->current_header_value = cli_concat_persistent_zstr_with_char(client->current_header_value, at, length);
        break;
    }
    case HEADER_NONE:
        /* Cannot happen as a header field must have been found before */
        assert(0);
        break;
    }
    client->last_header_element = HEADER_VALUE;
    return 0;
}

static int php_cli_server_client_read_request_on_headers_complete(php_http_parser *parser) {
    php_cli_server_client *client = parser->data;
    switch (client->last_header_element) {
    case HEADER_NONE:
        break;
    case HEADER_FIELD:
        /* Previous element was the header field, set it's value to an empty string */
        client->current_header_value = ZSTR_EMPTY_ALLOC();
        ZEND_FALLTHROUGH;
    case HEADER_VALUE:
        /* Save last header value */
        php_cli_server_client_save_header(client);
        break;
    }
    client->last_header_element = HEADER_NONE;
    return 0;
}

static int php_cli_server_client_read_request_on_body(php_http_parser *parser, const char *at, size_t length) {
    php_cli_server_client *client = parser->data;
    if (!client->request.content) {
        client->request.content = pemalloc(parser->content_length, 1);
        client->request.content_len = 0;
    }
    client->request.content = perealloc(client->request.content, client->request.content_len + length, 1);
    memmove(client->request.content + client->request.content_len, at, length);
    client->request.content_len += length;
    return 0;
}

static int php_cli_server_client_read_request_on_message_complete(php_http_parser *parser) {
    php_cli_server_client *client = parser->data;
    client->request.protocol_version = parser->http_major * 100 + parser->http_minor;
    php_cli_server_request_translate_vpath(
        client->server, &client->request, client->server->document_root, client->server->document_root_len);
    if (client->request.vpath) {
        const char *vpath = client->request.vpath;
        const char *end = vpath + client->request.vpath_len;
        const char *p = end;
        client->request.ext = end;
        client->request.ext_len = 0;
        while (p > vpath) {
            --p;
            if (*p == '.') {
                ++p;
                client->request.ext = p;
                client->request.ext_len = end - p;
                break;
            }
        }
    }
    client->request_read = true;
    return 0;
}

/* Returns:
 -1 when an error occurs
  0 when the request has not been read (try again?)
  1 when the request has been read
*/
static int php_cli_server_client_read_request(php_cli_server_client *client, char **errstr) {
    char buf[16384];
    static const php_http_parser_settings settings = {php_cli_server_client_read_request_on_message_begin,
                                                      php_cli_server_client_read_request_on_path,
                                                      php_cli_server_client_read_request_on_query_string,
                                                      php_cli_server_client_read_request_on_url,
                                                      php_cli_server_client_read_request_on_fragment,
                                                      php_cli_server_client_read_request_on_header_field,
                                                      php_cli_server_client_read_request_on_header_value,
                                                      php_cli_server_client_read_request_on_headers_complete,
                                                      php_cli_server_client_read_request_on_body,
                                                      php_cli_server_client_read_request_on_message_complete};
    size_t nbytes_consumed;
    int nbytes_read;
    if (client->request_read) {
        return 1;
    }
    nbytes_read = recv(client->sock, buf, sizeof(buf) - 1, 0);
    if (nbytes_read < 0) {
        int err = php_socket_errno();
        if (err == SOCK_EAGAIN) {
            return 0;
        }

        if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
            *errstr = php_socket_strerror(err, NULL, 0);
        }

        return -1;
    } else if (nbytes_read == 0) {
        if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
            *errstr = estrdup(php_cli_server_request_error_unexpected_eof);
        }

        return -1;
    }
    client->parser.data = client;
    nbytes_consumed = php_http_parser_execute(&client->parser, &settings, buf, nbytes_read);
    if (nbytes_consumed != (size_t) nbytes_read) {
        if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
            if ((buf[0] & 0x80) /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
                *errstr = estrdup("Unsupported SSL request");
            } else {
                *errstr = estrdup("Malformed HTTP request");
            }
        }

        return -1;
    }

    return client->request_read ? 1 : 0;
}
/* }}} */

static size_t php_cli_server_client_send_through(php_cli_server_client *client,
                                                 const char *str,
                                                 size_t str_len) /* {{{ */
{
    struct timeval tv = {10, 0};
#ifdef PHP_WIN32
    int nbytes_left = (int) str_len;
#else
    ssize_t nbytes_left = (ssize_t) str_len;
#endif
    do {
#ifdef PHP_WIN32
        int nbytes_sent;
#else
        ssize_t nbytes_sent;
#endif

        nbytes_sent = send(client->sock, str + str_len - nbytes_left, nbytes_left, 0);
        if (nbytes_sent < 0) {
            int err = php_socket_errno();
            if (err == SOCK_EAGAIN) {
                int nfds = php_pollfd_for(client->sock, POLLOUT, &tv);
                if (nfds > 0) {
                    continue;
                } else {
                    /* error or timeout */
                    php_handle_aborted_connection();
                    return nbytes_left;
                }
            } else {
                php_handle_aborted_connection();
                return nbytes_left;
            }
        }
        nbytes_left -= nbytes_sent;
    } while (nbytes_left > 0);

    return str_len;
} /* }}} */

static void php_cli_server_client_populate_request_info(const php_cli_server_client *client,
                                                        sapi_request_info *request_info) /* {{{ */
{
    zval *val;

    request_info->request_method = php_http_method_str(client->request.request_method);
    request_info->proto_num = client->request.protocol_version;
    request_info->request_uri = ZSTR_VAL(client->request.request_uri);
    request_info->path_translated = client->request.path_translated;
    request_info->query_string = client->request.query_string;
    request_info->content_length = client->request.content_len;
    request_info->auth_user = request_info->auth_password = request_info->auth_digest = NULL;
    if (NULL != (val = zend_hash_str_find(&client->request.headers, "content-type", sizeof("content-type") - 1))) {
        request_info->content_type = Z_STRVAL_P(val);
    } else {
        request_info->content_type = NULL;
    }
} /* }}} */

// TODO Remove?
static void destroy_request_info(sapi_request_info *request_info) /* {{{ */
{}                                                                /* }}} */

static void php_cli_server_client_ctor(php_cli_server_client *client,
                                       php_cli_server *server,
                                       php_socket_t client_sock,
                                       struct sockaddr *addr,
                                       socklen_t addr_len) /* {{{ */
{
    client->server = server;
    client->sock = client_sock;
    client->addr = addr;
    client->addr_len = addr_len;

    // TODO To prevent the reallocation need to retrieve a persistent string
    // Create a new php_network_populate_name_from_sockaddr_ex() API with a persistent flag?
    zend_string *tmp_addr = NULL;
    php_network_populate_name_from_sockaddr(addr, addr_len, &tmp_addr, NULL, 0);
    client->addr_str = zend_string_dup(tmp_addr, /* persistent */ true);
    GC_MAKE_PERSISTENT_LOCAL(client->addr_str);
    zend_string_release_ex(tmp_addr, /* persistent */ false);

    php_http_parser_init(&client->parser, PHP_HTTP_REQUEST);
    client->request_read = false;

    client->last_header_element = HEADER_NONE;
    client->current_header_name = NULL;
    client->current_header_value = NULL;

    client->post_read_offset = 0;

    php_cli_server_request_ctor(&client->request);

    client->content_sender_initialized = false;
    client->file_fd = -1;
} /* }}} */

static void php_cli_server_client_dtor(php_cli_server_client *client) /* {{{ */
{
    php_cli_server_request_dtor(&client->request);
    if (client->file_fd >= 0) {
        close(client->file_fd);
        client->file_fd = -1;
    }
    pefree(client->addr, 1);
    zend_string_release_ex(client->addr_str, /* persistent */ true);

    if (client->content_sender_initialized) {
        /* Headers must be set if we reached the content initialisation */
        assert(client->current_header_name == NULL);
        assert(client->current_header_value == NULL);
        php_cli_server_content_sender_dtor(&client->content_sender);
    }
} /* }}} */

static void php_cli_server_close_connection(php_cli_server *server, php_cli_server_client *client) /* {{{ */
{
    php_cli_server_logf(PHP_CLI_SERVER_LOG_MESSAGE, "%s Closing", ZSTR_VAL(client->addr_str));

    zend_hash_index_del(&server->clients, client->sock);
} /* }}} */

static zend_result php_cli_server_send_error_page(php_cli_server *server,
                                                  php_cli_server_client *client,
                                                  int status) /* {{{ */
{
    zend_string *escaped_request_uri = NULL;
    const char *status_string = get_status_string(status);
    const char *content_template = get_template_string(status);
    char *errstr = get_last_error();
    assert(status_string && content_template);

    php_cli_server_content_sender_ctor(&client->content_sender);
    client->content_sender_initialized = true;

    if (client->request.request_method != PHP_HTTP_HEAD) {
        escaped_request_uri = php_escape_html_entities_ex((const unsigned char *) ZSTR_VAL(client->request.request_uri),
                                                          ZSTR_LEN(client->request.request_uri),
                                                          0,
                                                          ENT_QUOTES,
                                                          NULL,
                                                          /* double_encode */ 0,
                                                          /* quiet */ 0);

        {
            static const char prologue_template[] = "<!doctype html><html><head><title>%d %s</title>";
            php_cli_server_chunk *chunk =
                php_cli_server_chunk_heap_new_self_contained(strlen(prologue_template) + 3 + strlen(status_string) + 1);
            if (!chunk) {
                goto fail;
            }
            snprintf(chunk->data.heap.p, chunk->data.heap.len, prologue_template, status, status_string);
            chunk->data.heap.len = strlen(chunk->data.heap.p);
            php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
        }
        {
            php_cli_server_chunk *chunk =
                php_cli_server_chunk_immortal_new(php_cli_server_css, sizeof(php_cli_server_css) - 1);
            if (!chunk) {
                goto fail;
            }
            php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
        }
        {
            static const char template[] = "</head><body>";
            php_cli_server_chunk *chunk = php_cli_server_chunk_immortal_new(template, sizeof(template) - 1);
            if (!chunk) {
                goto fail;
            }
            php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
        }
        {
            php_cli_server_chunk *chunk = php_cli_server_chunk_heap_new_self_contained(
                strlen(content_template) + ZSTR_LEN(escaped_request_uri) + 3 + strlen(status_string) + 1);
            if (!chunk) {
                goto fail;
            }
            snprintf(chunk->data.heap.p,
                     chunk->data.heap.len,
                     content_template,
                     status_string,
                     ZSTR_VAL(escaped_request_uri));
            chunk->data.heap.len = strlen(chunk->data.heap.p);
            php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
        }
        {
            static const char epilogue_template[] = "</body></html>";
            php_cli_server_chunk *chunk =
                php_cli_server_chunk_immortal_new(epilogue_template, sizeof(epilogue_template) - 1);
            if (!chunk) {
                goto fail;
            }
            php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
        }
    }

    {
        php_cli_server_chunk *chunk;
        smart_str buffer = {0};
        append_http_status_line(&buffer, client->request.protocol_version, status, 1);
        if (!buffer.s) {
            /* out of memory */
            goto fail;
        }
        append_essential_headers(&buffer, client, 1, NULL);
        smart_str_appends_ex(&buffer, SAPI_PHP_VERSION_HEADER "\r\n", 1);
        smart_str_appends_ex(&buffer, "Content-Type: text/html; charset=UTF-8\r\n", 1);
        smart_str_appends_ex(&buffer, "Content-Length: ", 1);
        smart_str_append_unsigned_ex(&buffer, php_cli_server_buffer_size(&client->content_sender.buffer), 1);
        smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
        if (status == 405) {
            smart_str_appends_ex(&buffer, "Allow: ", 1);
            smart_str_appends_ex(&buffer, php_http_method_str(PHP_HTTP_GET), 1);
            smart_str_appends_ex(&buffer, ", ", 1);
            smart_str_appends_ex(&buffer, php_http_method_str(PHP_HTTP_HEAD), 1);
            smart_str_appends_ex(&buffer, ", ", 1);
            smart_str_appends_ex(&buffer, php_http_method_str(PHP_HTTP_POST), 1);
            smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
        }
        smart_str_appendl_ex(&buffer, "\r\n", 2, 1);

        chunk = php_cli_server_chunk_heap_new(buffer.s, ZSTR_VAL(buffer.s), ZSTR_LEN(buffer.s));
        if (!chunk) {
            smart_str_free_ex(&buffer, 1);
            goto fail;
        }
        php_cli_server_buffer_prepend(&client->content_sender.buffer, chunk);
    }

    php_cli_server_log_response(client, status, errstr ? errstr : "?");
    php_cli_server_poller_add(&server->poller, POLLOUT, client->sock);
    if (errstr) {
        pefree(errstr, 1);
    }
    if (escaped_request_uri) {
        zend_string_free(escaped_request_uri);
    }
    return SUCCESS;

fail:
    if (errstr) {
        pefree(errstr, 1);
    }
    if (escaped_request_uri) {
        zend_string_free(escaped_request_uri);
    }
    return FAILURE;
} /* }}} */

static zend_result php_cli_server_dispatch_script(php_cli_server *server, php_cli_server_client *client) /* {{{ */
{
    if (strlen(client->request.path_translated) != client->request.path_translated_len) {
        /* can't handle paths that contain nul bytes */
        return php_cli_server_send_error_page(server, client, 400);
    }

    zend_file_handle zfd;
    zend_stream_init_filename(&zfd, SG(request_info).path_translated);
    zfd.primary_script = 1;
    zend_try {
        php_execute_script(&zfd);
    }
    zend_end_try();
    zend_destroy_file_handle(&zfd);

    php_cli_server_log_response(client, SG(sapi_headers).http_response_code, NULL);
    return SUCCESS;
} /* }}} */

static zend_result php_cli_server_begin_send_static(php_cli_server *server, php_cli_server_client *client) /* {{{ */
{
    int fd;
    int status = 200;

    if (client->request.request_method == PHP_HTTP_DELETE || client->request.request_method == PHP_HTTP_PUT ||
        client->request.request_method == PHP_HTTP_PATCH) {
        return php_cli_server_send_error_page(server, client, 405);
    }

    if (client->request.path_translated &&
        strlen(client->request.path_translated) != client->request.path_translated_len) {
        /* can't handle paths that contain nul bytes */
        return php_cli_server_send_error_page(server, client, 400);
    }

#ifdef PHP_WIN32
    /* The win32 namespace will cut off trailing dots and spaces. Since the
       VCWD functionality isn't used here, a sophisticated functionality
       would have to be reimplemented to know ahead there are no files
       with invalid names there. The simplest is just to forbid invalid
       filenames, which is done here. */
    if (client->request.path_translated &&
        ('.' == client->request.path_translated[client->request.path_translated_len - 1] ||
         ' ' == client->request.path_translated[client->request.path_translated_len - 1])) {
        return php_cli_server_send_error_page(server, client, 500);
    }

    fd = client->request.path_translated ? php_win32_ioutil_open(client->request.path_translated, O_RDONLY) : -1;
#else
    fd = client->request.path_translated ? open(client->request.path_translated, O_RDONLY) : -1;
#endif
    if (fd < 0) {
        return php_cli_server_send_error_page(server, client, 404);
    }

    php_cli_server_content_sender_ctor(&client->content_sender);
    client->content_sender_initialized = true;
    if (client->request.request_method != PHP_HTTP_HEAD) {
        client->file_fd = fd;
    }

    {
        php_cli_server_chunk *chunk;
        smart_str buffer = {0};
        const char *mime_type = get_mime_type(server, client->request.ext, client->request.ext_len);

        append_http_status_line(&buffer, client->request.protocol_version, status, 1);
        if (!buffer.s) {
            /* out of memory */
            php_cli_server_log_response(client, 500, NULL);
            return FAILURE;
        }
        append_essential_headers(&buffer, client, 1, NULL);
        if (mime_type) {
            smart_str_appendl_ex(&buffer, "Content-Type: ", sizeof("Content-Type: ") - 1, 1);
            smart_str_appends_ex(&buffer, mime_type, 1);
            if (strncmp(mime_type, "text/", 5) == 0) {
                smart_str_appends_ex(&buffer, "; charset=UTF-8", 1);
            }
            smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
        }
        smart_str_appends_ex(&buffer, "Content-Length: ", 1);
        smart_str_append_unsigned_ex(&buffer, client->request.sb.st_size, 1);
        smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
        smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
        chunk = php_cli_server_chunk_heap_new(buffer.s, ZSTR_VAL(buffer.s), ZSTR_LEN(buffer.s));
        if (!chunk) {
            smart_str_free_ex(&buffer, 1);
            php_cli_server_log_response(client, 500, NULL);
            return FAILURE;
        }
        php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
    }
    php_cli_server_log_response(client, 200, NULL);
    php_cli_server_poller_add(&server->poller, POLLOUT, client->sock);
    return SUCCESS;
}
/* }}} */

static zend_result php_cli_server_request_startup(php_cli_server *server, php_cli_server_client *client) { /* {{{ */
    zval *auth;
    php_cli_server_client_populate_request_info(client, &SG(request_info));
    if (NULL != (auth = zend_hash_str_find(&client->request.headers, "authorization", sizeof("authorization") - 1))) {
        php_handle_auth_data(Z_STRVAL_P(auth));
    }
    SG(sapi_headers).http_response_code = 200;
    if (FAILURE == php_request_startup()) {
        return FAILURE;
    }
    PG(during_request_startup) = 0;

    return SUCCESS;
}
/* }}} */

static void php_cli_server_request_shutdown(php_cli_server *server, php_cli_server_client *client) { /* {{{ */
    php_request_shutdown(0);
    php_cli_server_close_connection(server, client);
    destroy_request_info(&SG(request_info));
    SG(server_context) = NULL;
    SG(rfc1867_uploaded_files) = NULL;
    SG(request_parse_body_context).throw_exceptions = false;
    memset(&SG(request_parse_body_context).options_cache, 0, sizeof(SG(request_parse_body_context).options_cache));
}
/* }}} */

static bool php_cli_server_dispatch_router(php_cli_server *server, php_cli_server_client *client) /* {{{ */
{
    bool decline = false;
    zend_file_handle zfd;
    char *old_cwd;

    ALLOCA_FLAG(use_heap)
    old_cwd = do_alloca(MAXPATHLEN, use_heap);
    old_cwd[0] = '\0';
    php_ignore_value(VCWD_GETCWD(old_cwd, MAXPATHLEN - 1));

    zend_stream_init_filename(&zfd, server->router);
    zfd.primary_script = 1;

    zend_try {
        zval retval;
        ZVAL_UNDEF(&retval);
        int sg_options_back = SG(options);
        /* Don't chdir to the router script because the file path may be relative. */
        SG(options) |= SAPI_OPTION_NO_CHDIR;
        CG(skip_shebang) = true;
        bool result = php_execute_script_ex(&zfd, &retval);
        SG(options) = sg_options_back;
        if (result) {
            if (Z_TYPE(retval) != IS_UNDEF) {
                decline = Z_TYPE(retval) == IS_FALSE;
                zval_ptr_dtor(&retval);
            }
        }
    }
    zend_end_try();

    zend_destroy_file_handle(&zfd);

    if (old_cwd[0] != '\0') {
        php_ignore_value(VCWD_CHDIR(old_cwd));
    }

    free_alloca(old_cwd, use_heap);

    return decline;
}
/* }}} */

static zend_result php_cli_server_dispatch(php_cli_server *server, php_cli_server_client *client) /* {{{ */
{
    int is_static_file = 0;
    const char *ext = client->request.ext;

    SG(server_context) = client;
    if (client->request.ext_len != 3 || (ext[0] != 'p' && ext[0] != 'P') || (ext[1] != 'h' && ext[1] != 'H') ||
        (ext[2] != 'p' && ext[2] != 'P') || !client->request.path_translated) {
        is_static_file = 1;
    }

    if (server->router || !is_static_file) {
        if (FAILURE == php_cli_server_request_startup(server, client)) {
            php_cli_server_request_shutdown(server, client);
            return FAILURE;
        }
    }

    if (server->router) {
        if (!php_cli_server_dispatch_router(server, client)) {
            php_cli_server_request_shutdown(server, client);
            return SUCCESS;
        }
    }

    if (!is_static_file) {
        // TODO What?
        if (SUCCESS == php_cli_server_dispatch_script(server, client) ||
            FAILURE == php_cli_server_send_error_page(server, client, 500)) {
            if (SG(sapi_headers).http_response_code == 304) {
                SG(sapi_headers).send_default_content_type = 0;
            }
            php_cli_server_request_shutdown(server, client);
            return SUCCESS;
        }
    } else {
        if (server->router) {
            static int (*send_header_func)(sapi_headers_struct *);
            send_header_func = sapi_module.send_headers;
            /* do not generate default content type header */
            SG(sapi_headers).send_default_content_type = 0;
            /* we don't want headers to be sent */
            sapi_module.send_headers = sapi_cli_server_discard_headers;
            php_request_shutdown(0);
            sapi_module.send_headers = send_header_func;
            SG(sapi_headers).send_default_content_type = 1;
            SG(rfc1867_uploaded_files) = NULL;
            SG(request_parse_body_context).throw_exceptions = false;
            memset(
                &SG(request_parse_body_context).options_cache, 0, sizeof(SG(request_parse_body_context).options_cache));
        }
        if (FAILURE == php_cli_server_begin_send_static(server, client)) {
            php_cli_server_close_connection(server, client);
        }
        SG(server_context) = NULL;
        return SUCCESS;
    }

    SG(server_context) = NULL;
    destroy_request_info(&SG(request_info));
    return SUCCESS;
}
/* }}} */

static void php_cli_server_mime_type_ctor(php_cli_server *server,
                                          const php_cli_server_ext_mime_type_pair *mime_type_map) /* {{{ */
{
    const php_cli_server_ext_mime_type_pair *pair;

    zend_hash_init(&server->extension_mime_types, 0, NULL, NULL, 1);
    GC_MAKE_PERSISTENT_LOCAL(&server->extension_mime_types);

    for (pair = mime_type_map; pair->ext; pair++) {
        size_t ext_len = strlen(pair->ext);
        zend_hash_str_add_ptr(&server->extension_mime_types, pair->ext, ext_len, (void *) pair->mime_type);
    }
} /* }}} */

static void php_cli_server_dtor(php_cli_server *server) /* {{{ */
{
    zend_hash_destroy(&server->clients);
    zend_hash_destroy(&server->extension_mime_types);
    if (ZEND_VALID_SOCKET(server->server_sock)) {
        closesocket(server->server_sock);
    }
    if (server->host) {
        pefree(server->host, 1);
    }
    if (server->document_root) {
        pefree(server->document_root, 1);
    }
    if (server->router) {
        pefree(server->router, 1);
    }
#ifdef HAVE_FORK
    if (php_cli_server_workers_max > 1 && php_cli_server_workers && getpid() == php_cli_server_master) {
        zend_long php_cli_server_worker;

        for (php_cli_server_worker = 0; php_cli_server_worker < php_cli_server_workers_max; php_cli_server_worker++) {
            int php_cli_server_worker_status;

            do {
                if (waitpid(php_cli_server_workers[php_cli_server_worker], &php_cli_server_worker_status, 0) ==
                    FAILURE) {
                    /* an extremely bad thing happened */
                    break;
                }

            } while (!WIFEXITED(php_cli_server_worker_status) && !WIFSIGNALED(php_cli_server_worker_status));
        }

        pefree(php_cli_server_workers, 1);
    }
#endif
} /* }}} */

static void php_cli_server_client_dtor_wrapper(zval *zv) /* {{{ */
{
    php_cli_server_client *p = Z_PTR_P(zv);

    shutdown(p->sock, SHUT_RDWR);
    closesocket(p->sock);
    php_cli_server_poller_remove(&p->server->poller, POLLIN | POLLOUT, p->sock);
    php_cli_server_client_dtor(p);
    pefree(p, 1);
} /* }}} */

/**
 * Parse the host and port portions of an address specifier in
 * one of the following forms:
 * - hostOrIP:port
 * - [hostOrIP]:port
 */
static char *php_cli_server_parse_addr(const char *addr, int *pport) {
    const char *p, *end;
    long port;

    if (addr[0] == '[') {
        /* Encapsulated [hostOrIP]:port */
        const char *start = addr + 1;
        end = strchr(start, ']');
        if (!end) {
            /* No ending ] delimiter to match [ */
            return NULL;
        }

        p = end + 1;
        if (*p != ':') {
            /* Invalid char following address/missing port */
            return NULL;
        }

        port = strtol(p + 1, (char **) &p, 10);
        if (p && *p) {
            /* Non-numeric in port */
            return NULL;
        }
        if (port < 0 || port > 65535) {
            /* Invalid port */
            return NULL;
        }

        /* Full [hostOrIP]:port provided */
        *pport = (int) port;
        return pestrndup(start, end - start, 1);
    }

    end = strchr(addr, ':');
    if (!end) {
        /* Missing port */
        return NULL;
    }

    port = strtol(end + 1, (char **) &p, 10);
    if (p && *p) {
        /* Non-numeric port */
        return NULL;
    }
    if (port < 0 || port > 65535) {
        /* Invalid port */
        return NULL;
    }
    *pport = (int) port;
    return pestrndup(addr, end - addr, 1);
}

#if defined(HAVE_PRCTL) || defined(HAVE_PROCCTL)
static void php_cli_server_worker_install_pdeathsig(void) {
    // Ignore failure to register PDEATHSIG, it's not available on all platforms anyway
#if defined(HAVE_PRCTL)
    prctl(PR_SET_PDEATHSIG, SIGTERM);
#elif defined(HAVE_PROCCTL)
    int signal = SIGTERM;
    procctl(P_PID, 0, PROC_PDEATHSIG_CTL, &signal);
#endif

    // Check if parent has exited just after the fork
    if (getppid() != php_cli_server_master) {
        exit(1);
    }
}
#endif

static void php_cli_server_startup_workers(void) {
    char *workers = getenv("PHP_CLI_SERVER_WORKERS");
    if (!workers) {
        return;
    }

#ifdef HAVE_FORK
    php_cli_server_workers_max = ZEND_ATOL(workers);
    if (php_cli_server_workers_max > 1) {
        zend_long php_cli_server_worker;

        php_cli_server_workers = pecalloc(php_cli_server_workers_max, sizeof(pid_t), 1);

        php_cli_server_master = getpid();

        for (php_cli_server_worker = 0; php_cli_server_worker < php_cli_server_workers_max; php_cli_server_worker++) {
            pid_t pid = fork();

            if (pid < 0) {
                /* no more forks allowed, work with what we have ... */
                php_cli_server_workers_max = php_cli_server_worker + 1;
                return;
            } else if (pid == 0) {
#if defined(HAVE_PRCTL) || defined(HAVE_PROCCTL)
                php_cli_server_worker_install_pdeathsig();
#endif
                return;
            } else {
                php_cli_server_workers[php_cli_server_worker] = pid;
            }
        }
    } else {
        fprintf(stderr, "number of workers must be larger than 1\n");
    }
#else
    fprintf(stderr, "forking is not supported on this platform\n");
#endif
}

static zend_result php_cli_server_ctor(php_cli_server *server,
                                       const char *addr,
                                       const char *document_root,
                                       const char *router) /* {{{ */
{
    zend_result retval = SUCCESS;
    char *host = NULL;
    zend_string *errstr = NULL;
    char *_document_root = NULL;
    char *_router = NULL;
    int port = 3000;
    php_socket_t server_sock = SOCK_ERR;

    host = php_cli_server_parse_addr(addr, &port);
    if (!host) {
        fprintf(stderr, "Invalid address: %s\n", addr);
        retval = FAILURE;
        goto out;
    }

    server_sock =
        php_network_listen_socket(host, &port, SOCK_STREAM, &server->address_family, &server->socklen, &errstr);
    if (server_sock == SOCK_ERR) {
        if (strchr(host, ':')) {
            php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR,
                                "Failed to listen on [%s]:%d (reason: %s)",
                                host,
                                port,
                                errstr ? ZSTR_VAL(errstr) : "?");
        } else {
            php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR,
                                "Failed to listen on %s:%d (reason: %s)",
                                host,
                                port,
                                errstr ? ZSTR_VAL(errstr) : "?");
        }
        if (errstr) {
            zend_string_release_ex(errstr, 0);
        }
        retval = FAILURE;
        goto out;
    }
    // server_sock needs to be non-blocking when using multiple processes. Without it, the first process would
    // successfully accept the connection but the others would block, causing client sockets of the same select
    // call not to be handled.
    if (SUCCESS != php_set_sock_blocking(server_sock, 0)) {
        php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "Failed to make server socket non-blocking");
        retval = FAILURE;
        goto out;
    }
    server->server_sock = server_sock;

    php_cli_server_startup_workers();

    php_cli_server_poller_ctor(&server->poller);

    php_cli_server_poller_add(&server->poller, POLLIN, server_sock);

    server->host = host;
    server->port = port;

    zend_hash_init(&server->clients, 0, NULL, php_cli_server_client_dtor_wrapper, 1);

    {
        size_t document_root_len = strlen(document_root);
        _document_root = pestrndup(document_root, document_root_len, 1);
        server->document_root = _document_root;
        server->document_root_len = document_root_len;
    }

    if (router) {
        size_t router_len = strlen(router);
        _router = pestrndup(router, router_len, 1);
        server->router = _router;
        server->router_len = router_len;
    } else {
        server->router = NULL;
        server->router_len = 0;
    }

    php_cli_server_mime_type_ctor(server, mime_type_map);

    server->is_running = 1;
out:
    if (retval == FAILURE) {
        if (host) {
            pefree(host, 1);
        }
        if (_document_root) {
            pefree(_document_root, 1);
        }
        if (_router) {
            pefree(_router, 1);
        }
        if (server_sock > -1) {
            closesocket(server_sock);
        }
    }
    return retval;
} /* }}} */

static zend_result php_cli_server_recv_event_read_request(php_cli_server *server,
                                                          php_cli_server_client *client) /* {{{ */
{
    char *errstr = NULL;

    switch (php_cli_server_client_read_request(client, &errstr)) {
    case -1:
        if (errstr) {
            if (strcmp(errstr, php_cli_server_request_error_unexpected_eof) == 0 &&
                client->parser.state == s_start_req) {
                php_cli_server_logf(
                    PHP_CLI_SERVER_LOG_MESSAGE,
                    "%s Closed without sending a request; it was probably just an unused speculative preconnection",
                    ZSTR_VAL(client->addr_str));
            } else {
                php_cli_server_logf(
                    PHP_CLI_SERVER_LOG_ERROR, "%s Invalid request (%s)", ZSTR_VAL(client->addr_str), errstr);
            }
            efree(errstr);
        }
        php_cli_server_close_connection(server, client);
        return FAILURE;
    case 1:
        if (client->request.request_method == PHP_HTTP_NOT_IMPLEMENTED) {
            return php_cli_server_send_error_page(server, client, 501);
        }
        php_cli_server_poller_remove(&server->poller, POLLIN, client->sock);
        return php_cli_server_dispatch(server, client);
    case 0:
        php_cli_server_poller_add(&server->poller, POLLIN, client->sock);
        return SUCCESS;
        EMPTY_SWITCH_DEFAULT_CASE();
    }
    /* Under ASAN the compiler somehow doesn't realise that the switch block always returns */
    return FAILURE;
} /* }}} */

static zend_result php_cli_server_send_event(php_cli_server *server, php_cli_server_client *client) /* {{{ */
{
    if (client->content_sender_initialized) {
        if (client->file_fd >= 0 && !client->content_sender.buffer.first) {
            size_t nbytes_read;
            if (!php_cli_server_content_sender_pull(&client->content_sender, client->file_fd, &nbytes_read)) {
                php_cli_server_close_connection(server, client);
                return FAILURE;
            }
            if (nbytes_read == 0) {
                close(client->file_fd);
                client->file_fd = -1;
            }
        }

        size_t nbytes_sent;
        int err = php_cli_server_content_sender_send(&client->content_sender, client->sock, &nbytes_sent);
        if (err && err != SOCK_EAGAIN) {
            php_cli_server_close_connection(server, client);
            return FAILURE;
        }

        if (!client->content_sender.buffer.first && client->file_fd < 0) {
            php_cli_server_close_connection(server, client);
        }
    }
    return SUCCESS;
}
/* }}} */

typedef struct php_cli_server_do_event_for_each_fd_callback_params {
    php_cli_server *server;
    zend_result (*rhandler)(php_cli_server *, php_cli_server_client *);
    zend_result (*whandler)(php_cli_server *, php_cli_server_client *);
} php_cli_server_do_event_for_each_fd_callback_params;

static zend_result php_cli_server_do_event_for_each_fd_callback(void *_params, php_socket_t fd, int event) /* {{{ */
{
    php_cli_server_do_event_for_each_fd_callback_params *params = _params;
    php_cli_server *server = params->server;
    if (server->server_sock == fd) {
        php_cli_server_client *client = NULL;
        php_socket_t client_sock;
        socklen_t socklen = server->socklen;
        struct sockaddr *sa = pemalloc(server->socklen, 1);
        client_sock = accept(server->server_sock, sa, &socklen);
        if (!ZEND_VALID_SOCKET(client_sock)) {
            pefree(sa, 1);
            if (php_socket_errno() == SOCK_EAGAIN) {
                return SUCCESS;
            }
            if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
                char *errstr = php_socket_strerror(php_socket_errno(), NULL, 0);
                php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "Failed to accept a client (reason: %s)", errstr);
                efree(errstr);
            }
            return FAILURE;
        }
        if (SUCCESS != php_set_sock_blocking(client_sock, 0)) {
            pefree(sa, 1);
            closesocket(client_sock);
            return FAILURE;
        }
        client = pemalloc(sizeof(php_cli_server_client), 1);

        php_cli_server_client_ctor(client, server, client_sock, sa, socklen);

        php_cli_server_logf(PHP_CLI_SERVER_LOG_MESSAGE, "%s Accepted", ZSTR_VAL(client->addr_str));

        zend_hash_index_update_ptr(&server->clients, client_sock, client);

        php_cli_server_poller_add(&server->poller, POLLIN, client->sock);
    } else {
        php_cli_server_client *client;
        if (NULL != (client = zend_hash_index_find_ptr(&server->clients, fd))) {
            if (event & POLLIN) {
                params->rhandler(server, client);
            }
            if (event & POLLOUT) {
                params->whandler(server, client);
            }
        }
    }
    return SUCCESS;
} /* }}} */

static void php_cli_server_do_event_for_each_fd(php_cli_server *server,
                                                zend_result (*rhandler)(php_cli_server *, php_cli_server_client *),
                                                zend_result (*whandler)(php_cli_server *,
                                                                        php_cli_server_client *)) /* {{{ */
{
    php_cli_server_do_event_for_each_fd_callback_params params = {server, rhandler, whandler};

    if (SUCCESS !=
        php_cli_server_poller_iter_on_active(&server->poller, &params, php_cli_server_do_event_for_each_fd_callback)) {
        php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "Failed to poll event");
    }
} /* }}} */

static zend_result php_cli_server_do_event_loop(php_cli_server *server) /* {{{ */
{
    zend_result retval = SUCCESS;
    while (server->is_running) {
        struct timeval tv = {1, 0};
        int n = php_cli_server_poller_poll(&server->poller, &tv);
        if (n > 0) {
            php_cli_server_do_event_for_each_fd(
                server, php_cli_server_recv_event_read_request, php_cli_server_send_event);
        } else if (n == 0) {
            /* do nothing */
        } else {
            int err = php_socket_errno();
            if (err != SOCK_EINTR) {
                if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
                    char *errstr = php_socket_strerror(err, NULL, 0);
                    php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "%s", errstr);
                    efree(errstr);
                }
                retval = FAILURE;
                goto out;
            }
        }
    }
out:
    return retval;
} /* }}} */

static php_cli_server server;

static void php_cli_server_sigint_handler(int sig) /* {{{ */
{
    server.is_running = 0;
}
/* }}} */

/* Returns status code */
int do_cli_server(int argc, char **argv) /* {{{ */
{
    char *php_optarg = NULL;
    int php_optind = 1;
    int c, r;
    const char *server_bind_address = NULL;
    extern const opt_struct OPTIONS[];
    const char *document_root = NULL;
#ifdef PHP_WIN32
    char document_root_tmp[MAXPATHLEN];
    size_t k;
#endif
    const char *router = NULL;
    char document_root_buf[MAXPATHLEN];

    while ((c = php_getopt(argc, argv, OPTIONS, &php_optarg, &php_optind, 0, 2)) != -1) {
        switch (c) {
        case 'S':
            server_bind_address = php_optarg;
            break;
        case 't':
#ifndef PHP_WIN32
            document_root = php_optarg;
#else
            k = strlen(php_optarg);
            if (k + 1 > MAXPATHLEN) {
                fprintf(stderr, "Document root path is too long.\n");
                return 1;
            }
            memmove(document_root_tmp, php_optarg, k + 1);
            /* Clean out any trailing garbage that might have been passed
                    from a batch script. */
            do {
                document_root_tmp[k] = '\0';
                k--;
            } while ('"' == document_root_tmp[k] || ' ' == document_root_tmp[k]);
            document_root = document_root_tmp;
#endif
            break;
        case 'q':
            if (php_cli_server_log_level > 1) {
                php_cli_server_log_level--;
            }
            break;
        }
    }

    if (document_root) {
        zend_stat_t sb = {0};

        if (php_sys_stat(document_root, &sb)) {
            fprintf(stderr, "Directory %s does not exist.\n", document_root);
            return 1;
        }
        if (!S_ISDIR(sb.st_mode)) {
            fprintf(stderr, "%s is not a directory.\n", document_root);
            return 1;
        }
        if (VCWD_REALPATH(document_root, document_root_buf)) {
            document_root = document_root_buf;
        }
    } else {
        char *ret = NULL;

#ifdef HAVE_GETCWD
        ret = VCWD_GETCWD(document_root_buf, MAXPATHLEN);
#elif defined(HAVE_GETWD)
        ret = VCWD_GETWD(document_root_buf);
#endif
        document_root = ret ? document_root_buf : ".";
    }

    if (argc > php_optind) {
        router = argv[php_optind];
    }

    if (FAILURE == php_cli_server_ctor(&server, server_bind_address, document_root, router)) {
        return 1;
    }
    sapi_module.phpinfo_as_text = 0;

    {
        r = 0;
        bool ipv6 = strchr(server.host, ':');
        php_cli_server_logf(PHP_CLI_SERVER_LOG_PROCESS,
                            "PHP %s Development Server (http://%s%s%s:%d) started",
                            PHP_VERSION,
                            ipv6 ? "[" : "",
                            server.host,
                            ipv6 ? "]" : "",
                            server.port);
    }

#if defined(SIGINT)
    signal(SIGINT, php_cli_server_sigint_handler);
#endif

#if defined(SIGPIPE)
    signal(SIGPIPE, SIG_IGN);
#endif

    zend_signal_init();

    if (SUCCESS != php_cli_server_do_event_loop(&server)) {
        r = 1;
    }
    php_cli_server_dtor(&server);
    return r;
} /* }}} */
